How do I add people to a task to reduce the duration of a task? I have a automatically scheduled task that takes 15 days to complete with one person assigned when i try to add people it doesn't reduce the time it takes to complete the task. I am not good with MS Project and need to do this to complete an assessment for college but I can't figure it out.

1 Answer 1


You need to select "fixed work" instead of "fixed duration." You can find that functionality in the Task Information area. When you have fixed work selected, and you add a resource, that will change the duration. If you have fixed duration selected and you add resources, it will reduce resource utilization percentage.

  • It won't let me change the task type, it's highlighted gray
    – user45237
    Commented Jun 21, 2021 at 13:26
  • Hmm, I'm not sure the issue. You are opening the leaf / lowest task to change its type? There are some really good project experts on this exchange so hopefully they will jump in with a better answer. Commented Jun 21, 2021 at 13:42
  • 1
    Ah I wasn't selecting opening that I have sorted it now thank you very much for your help it is really appreciated :)
    – user45237
    Commented Jun 21, 2021 at 13:52
  • @user45237 Glad this answered your question--don't forget to mark the answer as accepted. Commented Jun 21, 2021 at 14:30

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